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path: root/drivers/dma/pl330.c
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Diffstat (limited to 'drivers/dma/pl330.c')
-rw-r--r--drivers/dma/pl330.c19
1 files changed, 16 insertions, 3 deletions
diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c
index 25ba84b18704..6214d9000db8 100644
--- a/drivers/dma/pl330.c
+++ b/drivers/dma/pl330.c
@@ -502,6 +502,7 @@ struct pl330_dmac {
struct dma_pl330_chan *peripherals; /* keep at end */
int quirks;
+ struct dentry *dbgfs;
struct reset_control *rstc;
struct reset_control *rstc_ocp;
};
@@ -2952,14 +2953,24 @@ DEFINE_SHOW_ATTRIBUTE(pl330_debugfs);
static inline void init_pl330_debugfs(struct pl330_dmac *pl330)
{
- debugfs_create_file(dev_name(pl330->ddma.dev),
- S_IFREG | 0444, NULL, pl330,
- &pl330_debugfs_fops);
+ pl330->dbgfs = debugfs_create_file(dev_name(pl330->ddma.dev),
+ S_IFREG | 0444, NULL, pl330,
+ &pl330_debugfs_fops);
+}
+
+static inline void deinit_pl330_debugfs(struct pl330_dmac *pl330)
+{
+ debugfs_remove(pl330->dbgfs);
+ pl330->dbgfs = NULL;
}
#else
static inline void init_pl330_debugfs(struct pl330_dmac *pl330)
{
}
+
+static inline void deinit_pl330_debugfs(struct pl330_dmac *pl330)
+{
+}
#endif
/*
@@ -3204,6 +3215,8 @@ static void pl330_remove(struct amba_device *adev)
struct dma_pl330_chan *pch, *_p;
int i, irq;
+ deinit_pl330_debugfs(pl330);
+
pm_runtime_get_noresume(pl330->ddma.dev);
if (adev->dev.of_node)